Determine Whether a and B Are Inverses A) No
B) Yes

question 69

Multiple Choice

Determine whether A and B are inverses.
- $$A = \left[ \begin{array} { r r r } - 2 & - 1 & - 5 \\2 & - 1 & 3 \\1 & 4 & - 2\end{array} \right] \text { and } B = \left[ \begin{array} { c c c } \frac { 5 } { 16 } & \frac { 11 } { 16 } & \frac { 1 } { 4 } \\- \frac { 7 } { 32 } & - \frac { 9 } { 32 } & \frac { 1 } { 8 } \\- \frac { 9 } { 32 } & - \frac { 7 } { 32 } & - \frac { 1 } { 8 }\end{array} \right]$$

• A) No
• B) Yes

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